The problem with comparing eras is when you get into the head-to-head stuff.

If you're talking about how fighters rank in terms of greatness.....then you rank them for how great they were for their particular era. I never saw any real footage of Harry Greb, so I don't know how he'd do against Marvin Hagler if they (magically) fought. But, I'm willing to concede that Greb was greater for his era than Hagler was his....

I know this goes off my orginal topic but I am wondering JabsRstiff is you consider Ray Leonard better in his era than Marvin?